Acids and bases AS90944 revision part 2

We are working through a practise paper from the Ministry website

You should have completed question 1 last night. Do question 2 tonight. See last night’s post for instructions on how to hand this work in.

Also revise writing chemical formulae, word equations, fully balanced chemical equations and the reactions of acids and bases by watching the embeded videos below. They are based on lessons and lesson notes I did with you earlier in the year. There is video of practical work you carried out when you were making salts by neutralising acids with bases.

Ions, ionic compounds, word equations and fully balanced chemical equations.

Neutralisation reactions and practical work you carried out. Acids bases and salts.

Precipitation reactions

Salts and their solubility in water.

Each acid has its own family of salts.

  • Sulphuric acid produces sulphates
  • Nitric acid produces nitrates
  • Hydrochloric acid produces chlorides

Salts are very often water soluble, if you stir them in water they dissolve and go into solution. Flick through the presentation to slide 4 and use the solubility rules to do the homework exercise. You can watch a precipitation reaction after slide 5.


Put the date in your book. Copy in the list and predict whether each salt is soluble in water or insoluble. The first one is done for you

Salt                                   Soluble/Insoluble

Sodium chloride                  Soluble

Calcium nitrate

Silver chloride

Lead sulphate

calcium nitrate

magnesium chloride

magnesium hydroxide

aluminium sulphate

silver sulphate

lead chloride

calcium carbonate

sodium carbonate

aluminium carbonate

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